Home / 113,663.22-156,854.34-61,980.36

Finding the Fourth Proportional to 113,663.22, 156,854.34 and 61,980.36

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Solution

The fourth proportional to 113,663.22, 156,854.34 and 61,980.36 is: 85,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,663.22 : 156,854.34 = 61,980.36 : x
  2. Step 2: Convert to fraction form
    113,663.22/156,854.34 = 61,980.36/x
  3. Step 3: Cross multiply
    113,663.22x = 156,854.34 × 61,980.36
  4. Step 4: Simplify right side
    113,663.22x = 9,721,888,460.76
  5. Step 5: Solve for x
    x = 9,721,888,460.76/113,663.22
  6. Step 6: Final answer
    x = 85,532.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.